Headphone



FIG. 1 is a perspective view of a headphone showing our new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is another perspective view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a side view of the opposite side thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

The broken line showings form no part of the claimed design. 

CLAIM The ornamental design for a headphone, as shown and described. 